diff --git a/package.json b/package.json
index b4d0077..a82a418 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "displayName": "Denon TV",
   "name": "homebridge-denon-tv",
-  "version": "5.1.9",
+  "version": "5.1.10",
   "description": "Homebridge plugin to control Denon/Marantz AV Receivers.",
   "license": "MIT",
   "author": "grzegorz914",
diff --git a/src/mainzone.js b/src/mainzone.js
index e355ab0..db7bc05 100644
--- a/src/mainzone.js
+++ b/src/mainzone.js
@@ -388,7 +388,7 @@ class MainZone extends EventEmitter {
 
             return true;
         } catch (error) {
-            await this.openwebif.impulseGenerato.stop();
+            await this.denon.impulseGenerato.stop();
             throw new Error(`Start error: ${error.message || error}, check again in 15s.`);
         };
     };
diff --git a/src/surround.js b/src/surround.js
index 4200d2b..874a43d 100644
--- a/src/surround.js
+++ b/src/surround.js
@@ -356,7 +356,7 @@ class Surround extends EventEmitter {
 
             return true;
         } catch (error) {
-            await this.openwebif.impulseGenerato.stop();
+            await this.denon.impulseGenerato.stop();
             throw new Error(`Start error: ${error.message || error}, check again in 15s.`);
         };
     };
diff --git a/src/zone2.js b/src/zone2.js
index 5e0dcf2..88ae137 100644
--- a/src/zone2.js
+++ b/src/zone2.js
@@ -386,7 +386,7 @@ class Zone2 extends EventEmitter {
 
             return true;
         } catch (error) {
-            await this.openwebif.impulseGenerato.stop();
+            await this.denon.impulseGenerato.stop();
             throw new Error(`Start error: ${error.message || error}, check again in 15s.`);
         };
     };
diff --git a/src/zone3.js b/src/zone3.js
index 3b617c7..d3c3205 100644
--- a/src/zone3.js
+++ b/src/zone3.js
@@ -386,7 +386,7 @@ class Zone3 extends EventEmitter {
 
             return true;
         } catch (error) {
-            await this.openwebif.impulseGenerato.stop();
+            await this.denon.impulseGenerato.stop();
             throw new Error(`Start error: ${error.message || error}, check again in 15s.`);
         };
     };